baber/WOPTO huggingface dataset:
Patent GB-1537567-A (GB)
Title: Permanent magnet electric motors
IPC: H02K23/20
Filed: 1976-10-01
Abstract: 1537567 Brushgear for electric motors GENERAL MOTORS Ltd 9 Sept 1977 [1 Oct 1976] 40776/76 Heading H2A A two-speed permanent-magnet electric motor includes a third brush 3 for high speed operation whose centre of contact moves towards brush 1 as the motor is run in, in order to compensate for the tendency of the motor to run faster as friotional resistance decreases during this period. The shift is produced by brush wear, the brush face 7 being initially chamfered as shown, or the brush holder being non-radial, Figs. 7, 8 (not shown)
Patent GB-937881-A (GB)
Title: Improvements in or relating to recording and indicating tape apparatus
IPC: G07C3/04
Filed: 1960-11-28
Abstract: 937,881. Typewriters. SIEMENS & HALSKE A.G. Nov. 28, 1960 [Nov. 27, 1959], No. 40805/60. Class 100 (4). [Also in Group XXXVIII] In a recording and indicating apparatus data is recorded and displayed upon one or more of several parallel tapes. A printing device is selectively movable across tapes for printing thereon. A tape is stepped on each time a character is printed on it, and is also stepped on by pulses not associated with the printing, whereby the recorded data may be aligned with an indicator. In a first embodiment six tapes are provided. The tapes are fed by individual driving rollers 5 selectively clutched to a single driving shaft. A carriage 3 carrying a printing head 2 and ink-ribbon 7 is mounted for transverse movement on rails 4 for association with a selected tape by the operation of push-buttons. The head 2 may carry separate devices for printing plain language characters and numerals, and also for recording in a manner suitable for machine reading, e.g. photo-electrically. The numerals may indicate batch numbers, for example, and a line 9 may be formed such that its length represents the number of articles in an order. Pulses cause the end of this line to be placed adjacent the end of a mask 8, and as the several articles of the order are assembled further pulses cause the tape to advance and the line to be obscured. Thus the length of the line not obscured represents the amount of the order unfulfilled. In a modification, Fig. 3, two tapes are superimposed, the upper tape 16, which has an associated carbon tape 17, being passed over a separating block 14 below which is fed the tape 15 on which recording is effected by a head 12. Printed characters appear on tape 15. Head 13 prints a code in dots on tape 16, no such printing appearing on tape 15.
Patent GB-949756-A (GB)
Title: Spring looping machine
IPC: B21F35/02
Filed: 1962-10-29
Abstract: 949,756. Deforming spring ends. TORRING- TON MFG. CO. Oct. 29, 1962 [Oct. 30, 1961], No. 40855/62. Heading B3E.  A spring looping machine for bending the end coil(s) of a spring includes a bending member operated by a cam. Springs are released one at a time from a tube 56 by a cam-operated gate 70 in conjunction with a cam-operated member 82 engaging springs left in the tube. The spring drops into a tube 112, carried by a lever 120, and is held therein by a spring-urged finger carried by a cam-operated pivoted lever 162. The spring is allowed partially to fall from the tube 112 to be engaged and rotated by an indexing head 182, having a blade 188, Fig. 10, thereon, which is raised by cam means and rotated by cam lever, segment and pulley means, Figs. 6, 7 and 8 (not shown) to engage the end coil 192 of the spring and rotate it to the correct position for bending. The head 182 is then lowered leaving the spring partially in the tube 112. A tool 246 on a slide 244 is then moved forward by a cam 240 to separate the lowermost coil 248, Fig. 14, and a tool 256 on a slide 254 is moved forward by a cam 250 to the position of Fig. 14. A tool 270, having surfaces 278, 280, on a slide 268 is then moved forward by a cam 264 to bend the coil 248 over on to the tool 256. The tool 270 may then be moved to the position of Fig. 15 to extend the bent coil 248, by swinging the guideway for the slide 268 about a pivot by link and crank means operated by a cam 300. After the bending the lever 120 carrying the tube 112 is swung by a cam 128 to a position above a tube 308 of a spring inverter 42 into which the spring is dropped. The tube 308 is carried by a holder 310, Fig. 17, which is then rotated 180 degrees by belt and pulley means 326 driven by a gear segment 336 on a lever rocked by a cam. The spring is held in the tube 308 during such rotation by a cap 314 on a spring 316 held away from the tube 308 by stops 318, 320 at the beginning and end of the movement of the holder 310. The spring is thus dropped into means which position it and form a loop at its other end.
Patent GB-1223952-A (GB)
Title: Method of carburising steels in cyanide-free fused salt baths
Inventor: BAUMGART KARL ULRICH
IPC: C23C8/46
Filed: 1968-08-27
Abstract: 1,223,952. Carburizing steel. H€RTOLWERK VEB. Aug.27, 1968, No.40950/68. Heading C7U. Steel is carburized in a cyanide - free bath to which is added elemental carbon, silicon carbide, and elemental silicon or a silicon alloy. The bath may be formed from chlorides and carbonates of the alkali and alkaline earth metals, and silicon carbide, alkali carbonate and silicon or a silicon alloy may be added together to the bath in powder or pressed form-carbon, preferably as flake graphite, may be added to the bath together with, or separately from the other additives. The bath is operated at 750‹ to 1200‹C., preferably 900‹ to 1000‹ C.
Patent GB-1327055-A (GB)
Title: Electrical protective arrangement for a reciprocating compres sor
IPC: F04B49/10
Filed: 1970-08-26
Abstract: 1327055 Controlling compressors DANFOSS A S 26 Aug 1970 [29 Aug 1969] 41028/70 Heading F1N In the event of an abnormally high temperature occurring in one of the delivery chambers 8 of a reciprocating piston compressor, the fall in electric current through a relay 10 due to the increased resistance of temperature responsive resistors 9 in the delivery chambers 8 causes stopping of the compressor drive motor 1.
Patent GB-410345-A (GB)
Abstract: 410,345. Controlling fuel supply and draught in furnaces, producers, &c. GROLL, C., Roanne, Loire, France. Feb. 10, 1933, No. 19646. Convention date, Feb. 17, 1932. Divided on 399,083. [Classes 51 (i) and 55 (i).] Hand control means for controlling simultaneously the supply of fuel and air and evacuation of gases from furnaces, gas producers and the like comprises a shaft 21 provided with a hand-wheel 21<a> and drums 22b around which are wound in reverse directions cables 22<c> connected to a frame 22d for shifting the belt 22 on variable speed cone pulleys 22<a> driving a mechanical stoker. The shaft 21 is also provided with cams 23, 25 for actuating cables 24<a>, 24b, 24<c> and 26<a>, 26b, 26<c> connected to the air supply valve 24 and gas outlet damper 26. The effective length of the cables for actuating the valve 24 and damper 26 is variable.
Patent GB-1207007-A (GB)
Title: Variable-rate fluid springs
Inventor: PHILLIPS VAUGHAN MANSEL
IPC: F16F9/084
Filed: 1968-08-29
Abstract: 1,207,007. Rolling diaphragm gas springs. VAUXHALL MOTORS Ltd. 19 June, 1969 [29 Aug., 1968], No. 41221/68. Heading F2S. In a rolling diaphragm gas spring, consisting of a gas-filled chamber 19 and a piston 10 which are sealingly linked by a tubular diaphragm 18, guide surfaces 28 and 34 support all but a short " return-bend " portion of the diaphragm in all relative positions of the piston and cylinder. The guide surfaces, which are preferably extensions of the chamber and piston respectively as shown, each have a cylindrical portion 30 or 34 and a tapering portion 32 or 36 such that the cross-sectional area of the " return-bend " is constant over a range of piston movement from the mean position shown to the fully-contracted state of the spring (when the diaphragm has the dot-dashed position), but this area diminishes as the piston moves from the mean to the fullyextended position. In consequence, the loaddeflection characteristic of the spring is of the form shown in the lower curve of Fig. 2, so that the spring has a variable spring rate as depicted in the upper curve of Fig. 2. The shape of the diaphragm before fitting may be cylindrical or frusto-conical. The spring may be combined with a piston-cylinder hydraulic damper to constitute a vehicle suspension unit.
Patent GB-1057640-A (GB)
Title: Improvements relating to hollow spherical bodies
Inventor: GIERLICH FRITZ
IPC: B25H7/04
Filed: 1963-10-18
Abstract: 1,057,640. Making hollow spherical bodies. KNAPSACK-GRIESHEIM A.G. Oct. 18, 1963, No. 41249/63. Heading B3A. [Also in Divisions B4 and B6] An apparatus for marking and/or cutting out spherical segment sheets comprises a swinging arm F carrying marking and/  or cutting means at its free end and supported concentrically in an annular bearing B by a rotatable cardan ring system including at least three rings D 1 , D 2 , D 3  so that by suitably tilting the individual rings the arm can be adjusted to describe any desired segment on a sheet pre-dished to the required sphere radius and positioned coaxially with respect to the cardan ring system. The bearing B is connected to a base G by four telescopic rods A which have pivotal connections at each end. The base plate G has three adjustable supports H for the pre-dished sheet. The arm F is attached to a shaft E mounted diametrally in the innermost ring D 1  which itself is supported in the ring D 2  by pins, the axes of which are at right-angles to the shaft E. In the particular apparatus described there are four rings D 1 -D 4 , each rotatable about an axis at right angles to the axes of the adjacent rings and having means to lock them at any desired angle.
Patent GB-1171669-A (GB)
Title: Process for the Preparation of Etherified Melamine-Formaldehyde Condensates
IPC: C08G12/42
Filed: 1967-09-11
Abstract: 1,171,669. Coated substrates. STAMICARBON N.V. 11 Sept., 1967 [14 Sept., 1966], No. 41418/67. Heading B2K. [Also in Division C3] Steel panels are coated with a composition comprising (a) an etherified melamine-formaldehyde resin obtained by heating melamine with hexamethylol melamine and alcohol (see Division C3) (b) an alkyd resin and (c) TiO 2  in xylene/butanol.
Patent GB-1001309-A (GB)
Title: Improvements in and relating to collapsible seats
IPC: A47C4/38
Filed: 1963-10-22
Abstract: 1,001,309. Folding seats. J. PENN. July 17, 1964 [Oct. 22, 1963], No. 41592/63. Heading A4J. A collapsible seat in its assembled condition comprises a pair of spaced members 16 interconnected by a flexible seatforming web 20, a pair of legs 12, 13 arranged in x-formation pivotally connected at 17 to each of the members 16, each leg being downwardly and inwardly directed so that all the legs converge and cross below the seating area and a chain 21 encircling and retaining the legs in their X-formation, the arrangement being such that the seat may be collapsed by bringing the members 16 together. Arm rests 15 may be pivoted at 14 to the legs 12, 13. A back-rest member 18 having a bolster 19 may be releasably mounted on the arm rests.
Patent GB-1151164-A (GB)
Title: A Method of Injecting a Liquid Fuel into a Shaft Furnace
IPC: C21B5/00
Filed: 1967-09-12
Abstract: 1,151,164. Spray burners; blast-furnace tuyeres. CENTRE NATIONAL DE RECHERCHES METALLURGIQUES. 12 Sept., 1967 [12 Sept., 1966 (2)], No. 41629/67. Headings F4B and F4T. A method of injecting liquid fuel into a shaft furnace 2 comprises introducing the fuel via a pipe 5 into an expansion chamber 6 where it is subjected to compressed atomizing air supplied between pipes 7 and 8, and then passing the mixture through a convergent-divergent tuyere 10, at the exit of which an oxidizing hot gaseous fluid is added from a main 1 to burn the fuel in the mixture before entry of the gaseous products into the furnace through a tuyere 4a. The liquid fuel may contain 5% water and the atomizing gas comprises an oxygen-rich gaseous mixture. In a modification of the apparatus of Fig. 1, the end of pipe 5 is split into a number of smaller pipes each opening into chamber 6 opposite a port therein through which the atomizing gas enters tangentially.
Patent GB-1087342-A (GB)
Title: Electrically heated vessel and detachable temperature regulating plug
IPC: H01H37/04
Filed: 1964-10-13
Abstract: 1,087,342. Two-part couplings; thermal switches. TEXAS INSTRUMENTS Inc. Oct. 13, 1964 [Nov. 15, 1963], No. 41757/64. Headings H2B and H2E. [Also in Divisions A4, H5]] A temperature regulating electric plug for an electrically heated vessel (e.g. a percolator, see Division A4) has a probe portion including an open container housing an auxiliary heater assembly (see Division H5) and a thermostatic switch assembly connected in parallel between a contact terminal of the plug and a supply conductor, the assemblies being resiliently biased into heat-exchange engagement with each other and outwardly of the container. The arrangement is such that when the main heating (e.g. percolation) is complete, the switch connects the auxiliary (high resistance) heater in series with the main heating element to keep the liquid warm without re-percolating, the thermostatic switch being kept open partly by the proximity of the auxiliary heater assembly. The plug (Fig. 5) comprises two body parts 41, 43 screwed together at 45 to grip mains conductors 53 and houses female contacts 55 clinched on to the conductors 53, an indicator lamp 63 and a current limiter 65. The container 95 housing the switch 111 and auxiliary heater (109) (Figs. 4, 10, not shown) is screwed to a portion 69 of the plug through an elongate hole (83) in a lug (85) of the container 95 and through a leaf-spring 73 to allow relative movement of the container 95 and plug body to compensate for manufacturing tolerances during engagement with the vessel (Fig. 2, not shown). A pocket (35) formed in the vessel to receive the container has an upper wall in contact with the liquid against which the switch 111 and heater (109) assemblies are urged by spring fingers 107 of a leaf-spring 103 in the base of the container 95 to ensure good heat transfer. The thermostatic switch 111 (also Figs. 7-9A, not shown) comprises a bimetallic strip (139) spot welded to a metal cover 117) which causes the contact parts (129), (135) of a curved conductor bar (123) and a springy contact strip (133) respectively riveted in an insulating base (113), to separate when a desired temperature is reached, a screw (125) being provided to adjust the position of the bar (123) and thereby regulate the temperature at which contact is broken. The heat conductive mass of the auxiliary heater (109) is such that the plug may be removed from the vessel and reinserted (within five minutes approximately) before the switch closes. The two assemblies (109), 111 are urged together for good heat transfer by a leaf-spring (169) positioned along one side of the container.
Patent GB-1150885-A (GB)
Title: Process For The Preparation Of Propylene Sulphide
Inventor: WRAGG REGINALD TREVOR
IPC: C07D331/04
Filed: 1965-10-02
Abstract: 1,150,885. Substituted sulphides. DUNLOP CO. Ltd. [F. K. Lautenschlaeger]. 23 Sept., 1966 [2 Oct., 1965], No. 41892/65. Heading C2C. Bis - (# - chloropropyl) - polysulphide, which is obtained by the interaction of propylene and sulphur monochloride under reaction conditions such that the temperature is not allowed to rise more than 60‹ C. above the ambient temperature may be converted to propylene sulphide in the presence of a non-acidic reducing system such as a mono- or poly-sulphide of a Group IA metal, e.g. sodium sulphide. The conversion is preferably carried out in the presence of a sulphur-accepting compound such as a sulphite or phosphite of a Group IA metal or triphenyl phosphine. The reaction between the propylene and sulphur monochloride may take place in the presence of a catalyst such as a tertiary organic base, preferably pyridine, and the examples describe reaction products containing bis-(beta-chloropropyl)-mono-, di- and trisulphides. Reference has been directed by the Comptroller to Specification 1,006,817.
Patent GB-1212285-A (GB)
Title: Analogue-digital converter
Inventor: KAIDA AKIRA
IPC: H03M1/00
Filed: 1968-09-05
Abstract: 1,212,285. Analogue / digital converter. SAKURA SOKKI K.K. 5 Sept., 1968 [7 Sept., 1967], No. 42207/68. Heading G4H. [Also in Division G1] An analogue/digital converter comprises a magnetic core 9 (Fig. 1) having a plurality of windings 10 to which are supplied multi-phase A.C. signals to generate a rotating magnetic field, magnetic members 12, 12<SP>1</SP> being fixed to a member rotated in accordance with the analogue input and a detector 13 producing a pulse when the magnetic field passes through the magnetic members 12. Clock pulses are counted between a reference pulse and the pulse from the detector 13 to give a digital indication of the analogue input. The detector may be a magneto-sensitive element or a coil. The reference pulses may be derived either from the positive going zero crossing of one of the A.C. signals or in a similar manner to the detector pulse using a wound core, detector and fixed magnetic member. The device may be used for the remote read-out of a multi-decade counter, each decade of which includes a converter. The reference pulses open or close gates 17 (Fig. 5), the detector pulses closing or opening the gates so that a counter 18 counts clock pulses for the time interval between the pulses.
Patent GB-1196330-A (GB)
Title: Scanning Device for the Plan Representation of Radiations Emitted by an Object
Inventor: DESGREZ ALEX
IPC: G01T1/166
Filed: 1967-09-18
Abstract: 1,196,330. Local viewing in colour. COMMISSARIAT A L'ENERGIE ATOMIQUE. 18 Sept., 1967 [5 Oct., 1966], No. 42424/67. Addition to 1,110,236. Heading H4F. [Also in Division G1] The arrangement described in Specification 1,110,236 for producing a recording of a scanned radiation field, in which the radiation intensity at each point is represented in the recording by a characteristic colour, is modified in that the photo-diodes 4 which determine the reproduced colour are controlled by a counter 3 which is driven by regular pulses from a time-base source 10 and is reset in accordance with the radiation intensity by signals applied from the radiation detector 1 by way of a divider 2. The counter is formed of a plurality of bi-stable multivibrators which are interconnected and control the photo-diodes so that the relationship between the radiation intensity and the selected colour follows a desired law which may be linear. The photo-diodes control the recording lamp 8 by way of an amplifier 6 and a synchronizing circuit 7 which is also supplied with the signals from divider 2 so that the frequency of the light flashes produced by the lamp is controlled in accordance with the radiation intensity as well as their colour.
Patent GB-1213700-A (GB)
Title: Transparent high impact graft polymers
IPC: C08F279/02
Filed: 1968-09-06
Abstract: 1,213,700. Graft polymers. BORG-WARNER CORP. 6 Sept., 1968 [14 Sept., 1967], No. 42443/68. Heading C3G. A graft polymer is prepared by polymerizing from 96 to 50% by weight of a mixture of at least 65% of methacrylonitrile and at least one other monomer in the presence of from 4 to 50% of a substrate comprised of a rubbery polymeric material selected from (1) conjugated diene homopolymers and (2) copolymers containing a conjugated diene and up to 30% of a monomer selected from styrene, substituted styrene, alkyl acrylate and alkyl alkacrylate. The graft comonomer may be methyl methacrylate, styrene, alpha-methyl styrene, p-chlorostyrene, methyl acrylate, n-butyl acrylate or vinyl toluene. In the examples polybutadiene is grafted with methacrylonitrile and methyl methacrylate, o-chlorostyrene or n-butyl acrylate and a butadiene-styrene copolymer is grafted with methacrylonitrile and methyl methacrylate or o-chlorostyrene, the graft polymerization being carried out in aqueous emulsion.
Patent GB-1183116-A (GB)
Title: Improvements in or relating to Lever-Operated Ratchet Devices
Inventor: ELKINS GORDON CHARLES
IPC: F16H31/00
Filed: 1967-09-19
Abstract: 1,183,116. Ratchet gearing; vehicle handbrake devices. MULTI-STROKE HANDBRAKE CONTROLS Ltd. 18 Sept., 1968 [19 Sept., 1967], No. 42564/67. Headings F2E and F2Q. In a lever-operated ratchet device, such as a multi-stroke handbrake control, a cable drum is formed with a ratchet wheel 7 on one side and a dished disc 8 on the other, the inner peripheral portion of the wheel 7 being machined to form a shoulder 23 preventing snagging of the teeth by the cable. Escape of the cable from the drum is prevented by a bolt 15 mounted between side plates 3, 4 and lying closely adjacent the edge of disc 8. The operating hand lever 18 carries a driving pawl 19, and a holding pawl 12 is pivoted on bolt 15, the pawls being withdrawn from the wheel 7 to free the cable 13 by depressing a release button 22 to move a member 20 clear of a stop pin 21 and then rotating lever 18 clockwise to bring the pawls into contact and thus cause them to rotate clear of the wheel 7. The outer disc 8 forms the subject of Specification 1,183,117.
Patent GB-1450165-A (GB)
Title: Apparatus for controlling the position of a vehicle component
IPC: E02F9/22
Filed: 1973-09-11
Abstract: 1450165 Shovelling machines CATERPILLAR TRACTOR CO 11 Sept 1973 [11 Sept 1972] 42590/73 Heading E1F [Also in Division H3] Apparatus for controlling the position of a vehicle component, e.g. a loader bucket, which can be positioned by a ram 20, 22 coupled to the component, the apparatus comprising a control member 28 operable to control the extension and contraction of the ram and arranged to be self returning from a selected operating position, an electrically operable latch 36 arranged to hold the control member 28 in said selected operating position when the latch is operative, and means responsive to reciprocation of the piston rod 22 of the ram 20, 22 for controlling operation of the latch and arranged so that the latch is rendered operative in response to movement of the piston rod in one direction and is rendered inoperative in response to movement of the rod in the other direction. Preferably the latch 36 is an electromagnet and the control member 28 is a manually pivotable control lever operatively coupled to a self-centring control element of a control valve of the ram. The means responsive to reciprocation of the piston rod 22 comprise first and second magnetic fieldresponsive switches 42, 44 controlled by magnetic field-producing means 48 mounted on the piston rod 22. The switches are so incorporated in the transistorised control circuit 46 of the latch 36 as to appropriately energise and de-energise the latch in accordance with the direction of movement of the piston rod 22, the circuit energising the latch when the second switch 44 becomes conductive and de-energising the latch when the first switch becomes conductive. The circuit 46 involves the first switch 42 being coupled to the base of a transistor 62, an additional transistor 64 having a base coupled to the collector of the transistor 62 and a silicon controlled rectifier 66 having an anode coupled to the emitter of the transistor 64, a cathode coupled to the base of a further transistor 60 having an emitter coupled to the latch, and a gate coupled to the second switch 44.